package com.singzi.leetcode.jianzhiOffer;

import org.junit.Test;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Stack;

public class testcase {
    @Test
    public void testNode(){
        Node node = new Node(1);
        Node node1 = node;
        node1.next = new Node(2);
        System.out.println(node.next.val);
        HashMap<Integer, Integer> map = new LinkedHashMap<>();
        Stack<Integer> st = new Stack<>();
    }
}
